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Finding the Fourth Proportional to 61,658.36, 85,088.18 and 34,809.60

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Solution

The fourth proportional to 61,658.36, 85,088.18 and 34,809.60 is: 48,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,658.36 : 85,088.18 = 34,809.60 : x
  2. Step 2: Convert to fraction form
    61,658.36/85,088.18 = 34,809.60/x
  3. Step 3: Cross multiply
    61,658.36x = 85,088.18 × 34,809.60
  4. Step 4: Simplify right side
    61,658.36x = 2,961,885,510.53
  5. Step 5: Solve for x
    x = 2,961,885,510.53/61,658.36
  6. Step 6: Final answer
    x = 48,037.05

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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.