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Finding the Fourth Proportional to 61,368.81, 84,688.40 and 34,511.51

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Solution

The fourth proportional to 61,368.81, 84,688.40 and 34,511.51 is: 47,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,368.81 : 84,688.40 = 34,511.51 : x
  2. Step 2: Convert to fraction form
    61,368.81/84,688.40 = 34,511.51/x
  3. Step 3: Cross multiply
    61,368.81x = 84,688.40 × 34,511.51
  4. Step 4: Simplify right side
    61,368.81x = 2,922,724,226.32
  5. Step 5: Solve for x
    x = 2,922,724,226.32/61,368.81
  6. Step 6: Final answer
    x = 47,625.56

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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.