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Finding the Fourth Proportional to 46,038.40, 69,042.48 and 14,448.40

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Solution

The fourth proportional to 46,038.40, 69,042.48 and 14,448.40 is: 21,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,038.40 : 69,042.48 = 14,448.40 : x
  2. Step 2: Convert to fraction form
    46,038.40/69,042.48 = 14,448.40/x
  3. Step 3: Cross multiply
    46,038.40x = 69,042.48 × 14,448.40
  4. Step 4: Simplify right side
    46,038.40x = 997,553,368.03
  5. Step 5: Solve for x
    x = 997,553,368.03/46,038.40
  6. Step 6: Final answer
    x = 21,667.85

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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.