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Finding the Fourth Proportional to 64,931.80, 97,368.90 and 29,853.40

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Solution

The fourth proportional to 64,931.80, 97,368.90 and 29,853.40 is: 44,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.80 : 97,368.90 = 29,853.40 : x
  2. Step 2: Convert to fraction form
    64,931.80/97,368.90 = 29,853.40/x
  3. Step 3: Cross multiply
    64,931.80x = 97,368.90 × 29,853.40
  4. Step 4: Simplify right side
    64,931.80x = 2,906,792,719.26
  5. Step 5: Solve for x
    x = 2,906,792,719.26/64,931.80
  6. Step 6: Final answer
    x = 44,766.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.