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Finding the Fourth Proportional to 93,457.52, 128,971 and 51,016.08

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Solution

The fourth proportional to 93,457.52, 128,971 and 51,016.08 is: 70,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,457.52 : 128,971 = 51,016.08 : x
  2. Step 2: Convert to fraction form
    93,457.52/128,971 = 51,016.08/x
  3. Step 3: Cross multiply
    93,457.52x = 128,971 × 51,016.08
  4. Step 4: Simplify right side
    93,457.52x = 6,579,594,853.68
  5. Step 5: Solve for x
    x = 6,579,594,853.68/93,457.52
  6. Step 6: Final answer
    x = 70,401.98

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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.