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Finding the Fourth Proportional to 93,507.51, 129,035.51 and 53,221.15

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Solution

The fourth proportional to 93,507.51, 129,035.51 and 53,221.15 is: 73,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,507.51 : 129,035.51 = 53,221.15 : x
  2. Step 2: Convert to fraction form
    93,507.51/129,035.51 = 53,221.15/x
  3. Step 3: Cross multiply
    93,507.51x = 129,035.51 × 53,221.15
  4. Step 4: Simplify right side
    93,507.51x = 6,867,417,587.86
  5. Step 5: Solve for x
    x = 6,867,417,587.86/93,507.51
  6. Step 6: Final answer
    x = 73,442.42

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.