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Finding the Fourth Proportional to 48,355, 72,643.68 and 34,349.08

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Solution

The fourth proportional to 48,355, 72,643.68 and 34,349.08 is: 51,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,355 : 72,643.68 = 34,349.08 : x
  2. Step 2: Convert to fraction form
    48,355/72,643.68 = 34,349.08/x
  3. Step 3: Cross multiply
    48,355x = 72,643.68 × 34,349.08
  4. Step 4: Simplify right side
    48,355x = 2,495,243,575.81
  5. Step 5: Solve for x
    x = 2,495,243,575.81/48,355
  6. Step 6: Final answer
    x = 51,602.60

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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.