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Finding the Fourth Proportional to 93,698.42, 129,288.49 and 53,412.93

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Solution

The fourth proportional to 93,698.42, 129,288.49 and 53,412.93 is: 73,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,698.42 : 129,288.49 = 53,412.93 : x
  2. Step 2: Convert to fraction form
    93,698.42/129,288.49 = 53,412.93/x
  3. Step 3: Cross multiply
    93,698.42x = 129,288.49 × 53,412.93
  4. Step 4: Simplify right side
    93,698.42x = 6,905,676,932.64
  5. Step 5: Solve for x
    x = 6,905,676,932.64/93,698.42
  6. Step 6: Final answer
    x = 73,701.11

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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.