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Finding the Fourth Proportional to 93,030.04, 128,417.97 and 65,947.68

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Solution

The fourth proportional to 93,030.04, 128,417.97 and 65,947.68 is: 91,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,030.04 : 128,417.97 = 65,947.68 : x
  2. Step 2: Convert to fraction form
    93,030.04/128,417.97 = 65,947.68/x
  3. Step 3: Cross multiply
    93,030.04x = 128,417.97 × 65,947.68
  4. Step 4: Simplify right side
    93,030.04x = 8,468,867,035.63
  5. Step 5: Solve for x
    x = 8,468,867,035.63/93,030.04
  6. Step 6: Final answer
    x = 91,033.68

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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.