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Finding the Fourth Proportional to 66,787.50, 92,166.75 and 38,495.01

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Solution

The fourth proportional to 66,787.50, 92,166.75 and 38,495.01 is: 53,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.50 : 92,166.75 = 38,495.01 : x
  2. Step 2: Convert to fraction form
    66,787.50/92,166.75 = 38,495.01/x
  3. Step 3: Cross multiply
    66,787.50x = 92,166.75 × 38,495.01
  4. Step 4: Simplify right side
    66,787.50x = 3,547,959,962.92
  5. Step 5: Solve for x
    x = 3,547,959,962.92/66,787.50
  6. Step 6: Final answer
    x = 53,123.11

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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.